* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}
ol,
ul,
dl {
  list-style: none;
}
.flex {
  display: flex;
}
.box {
  position: relative;
  width: 100%;
  height: 520px;
  margin: 0 auto;
  top: 0;
  z-index: 9999;
}
.box > .ul1 {
  width: 100%;
  height: 100%;
}
.box > .ul1 > li {
  width: 100%;
  height: 100%;
  position: absolute;
  top: 0px;
  left: 0px;
  transition-duration: 1s;
}
.box > .ul1 > li img {
  width: 100%;
  height: 520px;
}
.box .left {
  width: 30px;
  height: 60px;
  background-color: rgba(255, 255, 255, 0.8);
  font-size: 20px;
  font-weight: bold;
  color: #ccc;
  text-align: center;
  line-height: 60px;
  border-radius: 0 5px 5px 0;
  position: absolute;
  top: 50%;
  transform: translateY(-50%);
  z-index: 9999;
}
.box .right {
  width: 30px;
  height: 60px;
  background-color: rgba(255, 255, 255, 0.8);
  font-size: 20px;
  font-weight: bold;
  color: #ccc;
  text-align: center;
  line-height: 60px;
  border-radius: 5px 0 0 5px;
  position: absolute;
  top: 50%;
  right: 0;
  transform: translateY(-50%);
  z-index: 9999;
}
.box .ul2 {
  position: absolute;
  left: 50%;
  transform: translateX(-50%);
  bottom: 20px;
  z-index: 9999;
}
.box .ul2 li {
  width: 40px;
  height: 4px;
  background-color: #fff;
  float: left;
  margin: 0 10px 0px 10px;
  text-align: center;
  opacity: 0.5;
}
.box .ul2 li:hover {
  opacity: 1;
}
aside {
  text-align: center;
  color: #888;
  margin-bottom: 100px;
}
aside h2 {
  margin: 100px 0 30px 0px;
  color: #2b86ed;
  font-size: 2.2rem;
}
aside h4 {
  margin-bottom: 40px;
}
aside p {
  line-height: 2.5rem;
}
.aside1 {
  width: 80%;
  margin: 0 auto;
  margin-bottom: 7rem;
  display: flex;
  justify-content: space-between;
  text-align: center;
  color: #999;
  line-height: 2rem;
}
.aside1 ul {
  position: relative;
}
.aside1 ul .lantiao {
  width: 5rem;
  height: 5px;
  background-color: #2b86ed;
  position: absolute;
  left: 50%;
  top: 77%;
  transform: translateX(-50%);
}
.aside1 ul li:nth-of-type(2) {
  font-size: 1rem;
  margin: 20px 0 20px 0;
}
.aside1 ul p {
  font-size: 14px;
}
.Lt1 {
  width: 100%;
  height: 230px;
  background: url(../image/Lt1.png) no-repeat 0px -75px;
  background-size: 100%;
  margin-bottom: 10rem;
}
.Lt2 {
  width: 100%;
  height: 400px;
  background: url(../image/Lt2.png) no-repeat 0px -75px;
  background-size: 100%;
  margin-bottom: 10rem;
  color: #fff;
  text-align: center;
}
.Lt2 h2 {
  margin: 100px 0 30px 0px;
  font-size: 2.2rem;
  display: inline-block;
}
.Lt2 p {
  font-size: 1rem;
}
.Lt2 button {
  background-color: #fff;
  border: none;
  border-radius: 50px;
  width: 156px;
  height: 46px;
  margin-top: 2rem;
}
.Lt2 button a {
  font-size: 16px;
  text-decoration: none;
  color: #2b86ed;
}
.aside2 {
  width: 80%;
  margin: 0 auto;
}
.aside2 div:nth-child(1) {
  color: #888;
}
.aside2 div:nth-child(1) h2 {
  margin: 100px 0 30px 20px;
  color: #2b86ed;
  font-size: 2.2rem;
}
.aside2 div:nth-child(1) h4 {
  margin: 0 0 40px 20px;
}
.aside2 div:nth-child(1) ul {
  font-size: 14px;
}
.aside2 div:nth-child(1) ul li {
  line-height: 2rem;
  margin-right: 2rem;
}
.aside2 div:nth-child(1) ul li img {
  max-width: 350px;
}
.aside2 div:nth-child(2) {
  margin-bottom: 4rem;
  height: 830px;
}
.aside2 div:nth-child(2) div:nth-child(1) {
  height: 26rem;
  margin-bottom: 1rem;
}
.aside2 div:nth-child(2) div:nth-child(1) img {
  width: auto;
  height: 25rem;
  transition-duration: 1s;
}
.aside2 div:nth-child(2) div:nth-child(1) img:hover {
  width: auto;
  height: 26rem;
}
.aside2 div:nth-child(2) div:nth-child(2) img:nth-child(1) {
  width: auto;
  height: 20rem;
  margin-right: 2rem;
  transition-duration: 1s;
}
.aside2 div:nth-child(2) div:nth-child(2) img:nth-child(1):hover {
  width: auto;
  height: 21rem;
  margin-right: 1rem;
}
.aside2 div:nth-child(2) div:nth-child(2) img:nth-child(2) {
  max-width: 600px;
  height: 300px;
  transition-duration: 1s;
}
.aside2 div:nth-child(2) div:nth-child(2) img:nth-child(2):hover {
  max-width: 616px;
  height: 316px;
}
.m5 {
  width: 80%;
  margin: 0 auto;
}
.m5 img {
  width: 100%;
  height: 100%;
}
